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The bandwidth performance of a two-element linearly constrained minimum variance beamformer with sensor delay-lines (SDLs) attached is studied in terms of the directions of the interference signals, the inter-spacing between delay-line sensors and the length of the SDL. Compared with broadband beamformers with tapped delay-lines (TDLs), the SDL-based structure performs better in two ways: its output...
A novel adaptive broadband beamforming structure is proposed, where the tapped delay-lines in the traditional broadband beamforming structure are replaced by sensor delay-lines and only one coefficient is required for each of the received sensor signals. In this way, the highspeed analogue tapped delay-lines or digital sampling circuits are not required any more for some broadband beam- forming applications...
The bandwidth performance of an adaptive two- element array with sensor delay lines (SDLs) attached is studied in terms of the inter-spacing between delay line sensors and the number of delay line sensors added. Compared with adaptive arrays with tapped delay-lines (TDLs) the new SDL structure has a better performance in two aspects: its output SINR drops less as the inter-delay within delay lines...
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